/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

import com.mysql.jdbc.Connection;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author asmaa
 */
public class EditProduct extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        //processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    Connection conn;

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
            HttpSession sess =  request.getSession(false);
            if(sess == null)
                response.sendRedirect("notFound.jsp");
        try {
            try {
                Class.forName("com.mysql.jdbc.Driver").newInstance();
                conn = (Connection) DriverManager.getConnection("jdbc:mysql://localhost/Shopping", "root", "asmaaelmasry");
            } catch (Exception ee) {
            }
            Statement s = conn.createStatement();
            String name = request.getParameter("name");
            String desc = request.getParameter("description");
            float price = Float.parseFloat(request.getParameter("price"));
            int quantity = Integer.parseInt(request.getParameter("quantity"));
            int cId = Integer.parseInt(request.getParameter("catId"));
            int pId = Integer.parseInt(request.getParameter("productId"));
            //int catId = Integer.parseInt(request.getParameter("categoryID"));
            if (request.getParameter("categoryID") == "" || request.getParameter("categoryID") == null) {
                String stat = "update Product set name='" + name + "',description='" + desc + "',price=" + price + ", quantity=" + quantity + ",categoryId=" + cId + " where id=" + pId;
                PrintWriter out = response.getWriter();
                //out.println("update Product set name='" + name + "',description='" + desc + "',price=" + price + ", quantity=" + quantity + ",categoryId=" + catId + "where id="+ pId);
                s.executeUpdate(stat);
            }
            else
            {
                int catId = Integer.parseInt(request.getParameter("categoryID"));
                String stat = "update Product set name='" + name + "',description='" + desc + "',price=" + price + ", quantity=" + quantity + ",categoryId=" + catId + " where id=" + pId;
                PrintWriter out = response.getWriter();
                //out.println("update Product set name='" + name + "',description='" + desc + "',price=" + price + ", quantity=" + quantity + ",categoryId=" + catId + "where id="+ pId);
                s.executeUpdate(stat);
            }

            response.sendRedirect("AllProductView.jsp");
            
        } catch (SQLException ex) {
            Logger.getLogger(EditProduct.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
